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Finding the Third Proportional to 325.13 and 473.81

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Solution

The third proportional to 325.13 and 473.81 is: 690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.13 : 473.81 = 473.81 : x
  2. Step 2: Convert to fraction form
    325.13/473.81 = 473.81/x
  3. Step 3: Cross multiply
    325.13x = 473.81 × 473.81
  4. Step 4: Simplify right side
    325.13x = 224,498.29
  5. Step 5: Solve for x
    x = 224,498.29/325.13
  6. Step 6: Final answer
    x = 690.50

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.